TAISHAN MF rod are made by hollow drill steels; We use advanced production technology CNC and hollow drill steel processing by Boring Method ensuring quality reliability , Optimize processing procedure, entirely automatic threading equipment to finish the thread naturally and reduce the concentration of stress. Shape once of whole heat-treatment ensures long lifespan , Usually for MF rods, there are R32, R38, T38, T45 ,T51,ST58, T60 threads, and different lengths of rods are available from 600mm to 6400mm usually.
TAISHAN Male / Male rod, Male/Female (M/F) Rod -Speed rod M/F drill steel is an alternative to couplings sleeves to include the female part of the threaded connection as an integral part of the drill steel. M/F drill steel provides more rigid connections and is easier to uncouple and handle. The service life also tends to be better than with separate couplings. For Extension Rod and M/F steel process, the below two different types of heat treatment are used to strengthen high speed and powerful percussive drill string components to maximize their performance and reliability.
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